Todoist

Create and complete task lists

GeeTeeDee

A different task manager

iQ-Notes

Create notes with ease and organize all your tasks

Seacow

Integrate task and contact management

CherryTree

Save your notes with this complete program

LeaderTask

Personal task organizer

pin 'em up

The best software to create notes and reminders on your PC

Simple Sticky Notes

Program to create notes and reminders

RedNotebook

A personal diary with dozens of interesting options

Pagico

Very functional task planner

CreativeNotes

Create safe and organized notes for PC and Pocket PC

Efficient Lady's Organizer

Personal organizer focused towards women

Google Tasks

Control Google Tasks from your desktop

Flowkeeper

Manage to finish all your tasks on time

NixNote

Open source version of Evernote

XorTime

Manage your tasks and the time you spend on them

TV-FOX

More than 2,500 TV channels live from Firefox

Autofill Forms

Fill in forms automatically

User Agent Switcher

Tool to switch the user agent used

Video DownloadHelper

Download videos from the Internet by means of Firefox

Buffer

Share on social networks the web contents you visit

Adblock Plus for Firefox

Block Internet adverts

Adobe Flash Player (Chrome, Firefox & Opera)

The web multimedia player

Ank Pixiv Tool

Download manga images from Pixiv

Zotero

Complete manager for citations

IE Tab

View websites as if you visited them with Internet Explorer

FireShot

Take screen captures from Firefox

Sparky Alexa Toolbar

Have Alexa's information in your browser

Bookmark Duplicate Detector

Eliminate you duplicate bookmarks from your favorite browser

WebMail for Thunderbird

Use Thunderbird to manage your webmail

Shockwave Player

The add-on to play multimedia Flash contents in 3D